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"Because open source software features open code, more programmers are able to view the code, create new functionality, and fix bugs. This follows the same natural way that science has developed over time." – Taoism of Open Source; Chen Nan Yang; September 29, 2007.

Free Open Source Software (FOSS), also called just Open Source or Free Software, is licensed to be free to use, modify, and distribute. Most FOSS licenses also include a kind of legal Golden Rule, requiring any changes - such as fixes and enhancements - be released under the same license. This creates the trust in developers and users that generates large, sustainable communities that grow the software over time [1].

Getting steadily better for more than a quarter century, FOSS provides more capability, security, and sustainability at much less cost, and is increasingly the first software option for individuals and organizations alike. More information can be found in the following sections. (Thanks in advance for adding any info!)

Commercial Open Source Software (COSS) can contain Free Open Source Software components, however limits availability of key functionality to closed proprietary software, and therefore is discussed only on the COSS page.